The hardness block is an important tool for the calibration and inspection of the hardness tester. It has been precisely processed and hardness calibrated, and has a known, uniform and stable hardness value. Testing the hardness block with a hardness tester can determine the accuracy and precision of the hardness tester measurement. It is widely used in machinery manufacturing, metal processing and other industries to ensure that the hardness measurement equipment is normal and reliable, and to ensure that the hardness of the workpiece meets the production standards.
The indenter is a key component in experiments such as hardness testing and material microstructure analysis. In hardness testing, different types of indenters (such as steel ball indenters for Brinell hardness testing, diamond cone indenters for Rockwell hardness testing, etc.) act on the surface of the material being tested with a specific pressure, leaving an indentation, and the material hardness is calculated based on parameters such as the indentation size. In some metallographic analysis experiments, the indenter can also be used for operations such as pretreatment of the material surface.
Metallographic cutting discs are consumables used for cutting materials during metallographic sample preparation. Made of abrasives and binders, they have high hardness and wear resistance. In metallographic experiments, the materials to be analyzed need to be cut into specimens of suitable size and shape. Metallographic cutting discs can accurately and efficiently cut metals and some non-metallic materials. During the cutting process, the thermal impact and deformation of the material structure are minimized to ensure the accuracy of subsequent metallographic analysis.
Metallographic flannel is an important material in the polishing process of metallographic specimens. It is soft and fine-haired. It is used with polishing liquid to polish the surface of the cut and ground specimens on a metallographic polishing machine. Through the friction of the flannel and the chemical-mechanical action of the polishing liquid, the fine scratches on the surface of the specimen can be removed, making the surface of the specimen reach mirror finish, providing good surface conditions for tissue observation under a metallographic microscope.
Metallographic sandpaper is used in the grinding process of metallographic samples. Unlike ordinary sandpaper, metallographic sandpaper has uniform abrasive grains and reasonable distribution. It can remove the processing marks on the surface of the material while gradually improving the surface flatness and finish of the sample. Starting with coarse-grained metallographic sandpaper and gradually changing to fine-grained sandpaper for grinding can effectively eliminate the cutting damage layer and prepare for subsequent polishing and metallographic observation.
